What does this error mean in the context of a GridView? It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. ...
I'm starting on a small windows forms project that makes extensive use of editable grids. I want to use Linq to Entities, but while it's trivial to bind a grid to the Linq query it's read-only. I couldn't figure out a good way to have an editable grid that auto-updates the database. (I hacked a work-around where I copy the data into a...
Hello. I am writing a program in C# / VS2005 to back up our production database, compress it, and transfer it to a remote server. I have a simple ftp site set up on the remote server. The problem is that the file only transfers about half way (~500 - 600 MB) and the program throws the exception: "An existing connection was forcibly...
I don't know if the title makes sense, but I am wondering how a hashtable enlarges when you add items to it? Is it like the List<T> where it doubles in size when the limit is reached? If so, then does this doubling recreates the collection from scratch (this can be answered for List<T> too, since I am not sure if that's what it does)? ...
I have an enum in a low level namespace. I'd like to provide a class or enum in a mid level namespace that "inherits" the low level enum. namespace low { public enum base { x, y, z } } namespace mid { public enum consume : low.base { } } I'm hoping that this is possible, or perhaps some kind of class that can ...
I have a .resx file which contains some string resources for my project. At runtime, I'd like to read all of the resources defined in this file and store them in a container. The reason isn't important. I've read about the ResourceReader class, which operates on binary .resource files. My impression is that the .resx is converted ...
I've written a client/server model in C# using .Net remoting. If I have the client connected to the server, then kill the server and restart it without trying to call any server methods from the client whilst the server is down, I can reconnect happily. If I close the server then try to ping the server from the client (which I do from a...
I am using GDIView to try to track down the source of a few lingering GDI handles, and the source seems to be Fonts used in a menu on the form. The only way I've found to make sure the font handles are GCed is to explicitly set them to null like this: tsmiTextLocation.Font = null; tsmiLocationSelection.Font = null; This doesn't seem ...
How much do you use the XML comments in your code files, and how do you use them? I've seen that you can use them to generate XML documentation, but can this XML documentation be used to generate an HTML help file or schema file for your code? Also, have you used any auto-generating comment tools (i.e. GhostDoc), and what are your impre...
Our workstations are not members of the domain our SQL Server is on. (They're not actually on a domain at all - don't ask). When we use SSMS or anything to connect to the SQL Server, we use RUNAS /NETONLY with DOMAIN\user. Then we type in the password and it launches the program. (RUNAS /NETONLY does not allow you to include the pass...
I am working on a project to retrieve emails from a POP3 mailbox and save those to a database. I would like to find a way I can link original messages to replies so I can relationally show them as a chain. I was going to use subject lines those aren't going to be very reliable as they have the ability to change. Is there anything belo...
Why doesn't this produce the correct number of string permutations? For perm("ABC", 3) it should print 27 different permutations. private static List<string> permutated = new List<string>(30000); public static List<string> perm(string s, int k) { return comb(s, "", k); } private static List<string> perm(string s, string prefix, int...
I've just started to learn about Asp.Net 3.5 compilation model, but most articles mostly talk about Asp.Net 2.0 compilation model and how it differs from previous versions of ASP.NET compilation model. So I wasn't able to find any article explaining if there are any differences between ASP.NET 2.0 and ASP.NET 3.5 compilation models. Thus...
The problem: We have several dozen one off applications in our environment scattered across a dozen servers. Some apps are secured with one-off form/db based logins. Some apps have permissions defined in web.config. Some apps have folder level NTFS permissions set (some with domain user accounts, some with local user accounts for ex...
I have some settings in my app.config which I intend to be 'global' - ie. any user can change them, and all users get the same setting. But unless I change them to be user settings, they are read only. Why is this? And how should I go about persisting my app's global settings? Edit: This is actually a windows service application whi...
I'm working on this homework project and having trouble understanding the text explaining how to correctly take the accessed value of the enumeration and then apply the string array value to it. Can you please help me understand this? The text we are using is very difficult and poorly written for a beginner to understand, so I'm kind of ...
I've been reading lots on how to trigger an application from inside a C# program (Process.Start()), but I haven t been able to find any information on how to have this new application run within a panel of my C# program. For example, I'd like a button click to open a notepad.exe WITHIN my application, not externally. Thanks. ...
I am working on building some pseudo-intelligent caching into a LINQ query provider. What I'd like to do (ideally) is use the expression tree of a given query as the cache key in some scenarios. However, I don't want to store the entire object graph itself, so what's a quick way to get a hashsum-like value from an expression tree? Or if ...
What's the most practical way to add custom properties to a side wide ViewDataDictionary? Let's assume a simple case: public ActionResult Index() { // ViewData["Title"] = "Home"; ViewData.Title = "Home"; return View(); } The first thing that comes to mind is a custom class and using "new" in a application base controller: publ...
Grettings! I have some XML that looks like this: <Root> <SectionA> <Item id="111"> <Options> <Option val="a" cat="zzz"> <Package value="apple" /> <Feature value="avacado" /> </Option> <Option val="b" cat="yyy"> ...